- So today, we are at Penumbra studios, in their Matthew Brady style tintype studio, this is a real treat. We're going to see the overall process for how we can create a portrait with this type of vintage equipment. We'll actually see the process in another lesson, of creating, making that plate ready to use, and actually developing, creating the actual final photo, one frame at a time, which I think is absolutely fascinating. With me here is Jeffrey at the Penumbra Foundation. So, Jeffrey, first of all, what is this? - Well, this is called a sentry studio camera, five by seven, even though we usually prefer five by seven and four by five, we're going to be shooting four by five tintype on it.